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Commit d4b96c7b authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

ipv6: Extend notifier info for multipath routes 



Extend the IPv6 FIB notifier info with number of sibling routes being
notified.

This will later allow listeners to process one notification for a
multipath routes instead of N, where N is the number of nexthops.

Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Reviewed-by: default avatarDavid Ahern <dsahern@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c82481f7

include/net/ip6_fib.h

+7 −0
Original line number Diff line number Diff line
@@ -377,6 +377,8 @@ typedef struct rt6_info *(*pol_lookup_t)(struct net *, 
struct fib6_entry_notifier_info {

	struct fib_notifier_info info; /* must be first */

	struct fib6_info *rt;

	unsigned int nsiblings;

	bool multipath_rt;

};



/*
@@ -450,6 +452,11 @@ int call_fib6_entry_notifiers(struct net *net, 
			      enum fib_event_type event_type,

			      struct fib6_info *rt,

			      struct netlink_ext_ack *extack);

int call_fib6_multipath_entry_notifiers(struct net *net,

					enum fib_event_type event_type,

					struct fib6_info *rt,

					unsigned int nsiblings,

					struct netlink_ext_ack *extack);

void fib6_rt_update(struct net *net, struct fib6_info *rt,

		    struct nl_info *info);

void inet6_rt_notify(int event, struct fib6_info *rt, struct nl_info *info,

net/ipv6/ip6_fib.c

+17 −0
Original line number Diff line number Diff line
@@ -381,6 +381,23 @@ int call_fib6_entry_notifiers(struct net *net, 
	return call_fib6_notifiers(net, event_type, &info.info);

}



int call_fib6_multipath_entry_notifiers(struct net *net,

					enum fib_event_type event_type,

					struct fib6_info *rt,

					unsigned int nsiblings,

					struct netlink_ext_ack *extack)

{

	struct fib6_entry_notifier_info info = {

		.info.extack = extack,

		.rt = rt,

		.nsiblings = nsiblings,

		.multipath_rt = true,

	};



	rt->fib6_table->fib_seq++;

	return call_fib6_notifiers(net, event_type, &info.info);

}



struct fib6_dump_arg {

	struct net *net;

	struct notifier_block *nb;